EP2123870A1 - Dispositif de ventilation de carter de moteur à combustion interne à multiples cylindres - Google Patents

Dispositif de ventilation de carter de moteur à combustion interne à multiples cylindres Download PDF

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Publication number
EP2123870A1
EP2123870A1 EP09251362A EP09251362A EP2123870A1 EP 2123870 A1 EP2123870 A1 EP 2123870A1 EP 09251362 A EP09251362 A EP 09251362A EP 09251362 A EP09251362 A EP 09251362A EP 2123870 A1 EP2123870 A1 EP 2123870A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
engine
blowby gas
treatment system
supply device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09251362A
Other languages
German (de)
English (en)
Other versions
EP2123870B1 (fr
Inventor
Hayato Matsuda
Shigeru Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP2123870A1 publication Critical patent/EP2123870A1/fr
Application granted granted Critical
Publication of EP2123870B1 publication Critical patent/EP2123870B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to an improvement of a blowby gas treatment system for a multiple cylinder engine, in which: a first cylinder and a second cylinder are provided to the engine; a first fuel supply device that always operates during operation of the engine is connected to the first cylinder; and a second fuel supply device that is capable of stopping an operation thereof during the operation of the engine is connected to the second cylinder.
  • an upstream end of a breather pipe is connected to a breather chamber in which a blowby gas is collected, and a downstream end of the breather pipe opens into a clean room in an air cleaner of an intake system of the engine, the blowby gas is recirculated to the intake system and burned together with an air-fuel mixture in a cylinder (see Japanese Patent Application Laid-open No. 2007-263022 ).
  • the present invention is achieved in view of these circumstances, and has an object to provide a blowby gas treatment system for a multiple cylinder engine that can easily prevent a blowby gas from flowing toward a stopped cylinder when any of the cylinders is stopped.
  • a blowby gas treatment system for the multiple cylinder engine in which: first and second branch pipes of an intake manifold are connected to the first and second cylinders, and a blowby gas outlet of a breather chamber and a blowby gas inlet opening into the first branch pipe communicate with each other via a breather pipe, the breather chamber collecting a blowby gas of the engine.
  • the first cylinder connecting to the first branch pipe always receives supply of fuel from the fuel supply device in a first throttle body and operates, and all the blowby gas is supplied to the first cylinder together with intake air passing through the first throttle body and burned.
  • blowby gas is not mixed into the air, thereby preventing an unburned blowby gas from being discharged from the engine. Further, this is achieved by an extremely simple structure in which the blowby gas inlet is formed to open into the second branch pipe, thereby preventing an increase in cost.
  • the above-described fuel supply device corresponds to first and second throttle bodies 12 and 13, respectively, described below.
  • FIGS. 1 and 2 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 .
  • the engine E includes a crankcase 2 for supporting a crankshaft 1, and first and second banks 3 and 4 connected to an upper portion of the crankcase 2 and arranged in a V-shape with the crankshaft 1 at the center.
  • the first and second banks 3 and 4 include first and second cylinders 5 and 6, respectively, and pistons 9 connected to the crankshaft 1 via connecting rods 8 are fitted to the first and the second cylinders 5 and 6.
  • First and second throttle bodies 12 and 13 are mounted to the fronts of cylinder heads 10 of the first and second banks 3 and 4 via elbow-type intake pipes 11 and 11.
  • the first and second throttle bodies 12 and 13 include throttle valves 15 for opening and closing intake passages 14 connecting to intake ports of the first and second cylinders 5 and 6, and electromagnetic fuel injection valves 16 for injecting fuel to the intake passages 14 downstream of the throttle valves 15.
  • Connecting pipes 17 connecting to the intake passages 14 are coupled to upstream ends of the throttle bodies 12 and 23, and an intake manifold 20 is connected to the first and second throttle bodies 12 and 13 via the connecting pipes 17.
  • the intake manifold 20 comprises a main pipe 21 and a pair of first and second branch pipes 22 and 23 branching from the main pipe 21 in a V shape.
  • the first and second branch pipes 22 and 23 are fitted and connected to the connecting pipes 17 of the first and second throttle bodies 12 and 13, and an air cleaner 24 is mounted to the main pipe 21.
  • air filtered by the air cleaner 24 flows into the main pipe 21, then is divided into two streams and flows into the first and second branch pipes 22 and 23, moves to the intake passages 14 in the first and second throttle bodies 12 and 13, and is sucked into the first and second cylinders 5 and 6 while being mixed with fuel injected from the respective fuel injection valves 16.
  • the fuel injection valve 16 in the first throttle body 12 always operates and injects fuel toward the first cylinder 5 during the operation of the engine E, while the fuel injection valve 16 in the second throttle body 13 is controlled by an unshown electronic control unit so as to stop its operation to stop the second cylinder 6 according to an operation condition of the engine E (for example, during low speed operation when low fuel consumption is important).
  • a breather chamber 25 in which a blowby gas generated in the crankcase 2 is collected is formed in the engine E, and arranged between the first and second cylinders 5 and 6.
  • a labyrinth is formed in the breather chamber 25 as is conventional, and oil is separated from the blowby gas while the blowby gas is passing through the labyrinth.
  • a blowby gas outlet 26 is provided in an upper portion of the breather chamber 25.
  • a blowby gas inlet 27 is provided to the first branch pipe 22 of the intake manifold 20, the blowby gas inlet 27 being opened into the inside of the first branch pipe 22.
  • the blowby gas outlet and inlet 26 and 27 connect with each other via a breather pipe 28. It is to be noted that the blowby gas inlet 27 is provided in the first branch pipe 22 on a side of the first cylinder 5 whose operation does not stop.
  • the first cylinder 5 connecting to the first branch pipe 22 always receives supply of the fuel injected from the fuel injection valve 16 in the first throttle body 12 and operates, and thus all the blowby gas is supplied to the first cylinder 5 together with intake air passing through the first throttle body 12 and burned.
  • the present invention is not limited to the above-mentioned embodiment and may be modified in a variety of ways as long as the modifications do not depart from its gist.
  • the present invention may be applied to a serial multiple cylinder engine.
  • a plurality of first and second cylinders 5 and 6 may be provided in the engine E.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP09251362.1A 2008-05-21 2009-05-21 Dispositif de ventilation de carter de moteur à combustion interne à multiples cylindres Not-in-force EP2123870B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008133349A JP5078745B2 (ja) 2008-05-21 2008-05-21 多気筒ｖ型エンジンにおけるブローバイガス処理装置

Publications (2)

Publication Number Publication Date
EP2123870A1 true EP2123870A1 (fr) 2009-11-25
EP2123870B1 EP2123870B1 (fr) 2013-12-25

Family

ID=40977889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09251362.1A Not-in-force EP2123870B1 (fr) 2008-05-21 2009-05-21 Dispositif de ventilation de carter de moteur à combustion interne à multiples cylindres

Country Status (4)

Country Link
US (1) US8127740B2 (fr)
EP (1) EP2123870B1 (fr)
JP (1) JP5078745B2 (fr)
CN (1) CN101586487A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927442A1 (fr) * 2014-03-26 2015-10-07 Honda Motor Co., Ltd. Appareil d'aération pour moteur à combustion interne pour véhicule

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8443784B2 (en) * 2011-10-06 2013-05-21 GM Global Technology Operations LLC Internal combustion engine and method for control
JP5953086B2 (ja) * 2012-03-28 2016-07-13 本田技研工業株式会社 可変気筒エンジンの吸気装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510459A (en) * 1975-06-04 1978-05-10 British Leyland Uk Ltd Multi-cylinder spark ignition internal combustion engine having means to limit fuel supply to half the cylinder
US4103655A (en) * 1977-03-22 1978-08-01 Donald Kennedy Coles Internal combustion engine
US4366788A (en) 1979-10-30 1983-01-04 Nissan Motor Company, Limited Internal combustion engine
US4528969A (en) 1982-12-24 1985-07-16 Honda Giken Kogyo Kabushiki Kaisha Blow-by gas returning device for V-type internal combustion engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121537Y2 (fr) * 1980-02-01 1986-06-27
JPS59194018A (ja) 1983-04-18 1984-11-02 Mazda Motor Corp Ｖ型エンジン
JPS6270653A (ja) * 1985-09-24 1987-04-01 Yamaha Motor Co Ltd Ｖ形エンジンの排気浄化装置
JPS6285110A (ja) * 1985-10-11 1987-04-18 Yamaha Motor Co Ltd Ｖ形エンジンのブロ−バイガス回収装置
DE3713210A1 (de) 1987-04-18 1988-11-03 Porsche Ag Entlueftungsvorrichtung mit integriertem oelabscheider
JP3175491B2 (ja) * 1994-09-01 2001-06-11 トヨタ自動車株式会社 可変気筒エンジンの制御装置
JP2007092649A (ja) * 2005-09-29 2007-04-12 Toyota Motor Corp ブローバイガス還元装置
JP4748591B2 (ja) 2006-03-29 2011-08-17 本田技研工業株式会社 ブリーザ装置付きエンジン

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1510459A (en) * 1975-06-04 1978-05-10 British Leyland Uk Ltd Multi-cylinder spark ignition internal combustion engine having means to limit fuel supply to half the cylinder
US4103655A (en) * 1977-03-22 1978-08-01 Donald Kennedy Coles Internal combustion engine
US4366788A (en) 1979-10-30 1983-01-04 Nissan Motor Company, Limited Internal combustion engine
US4528969A (en) 1982-12-24 1985-07-16 Honda Giken Kogyo Kabushiki Kaisha Blow-by gas returning device for V-type internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927442A1 (fr) * 2014-03-26 2015-10-07 Honda Motor Co., Ltd. Appareil d'aération pour moteur à combustion interne pour véhicule

Also Published As

Publication number Publication date
JP5078745B2 (ja) 2012-11-21
JP2009281247A (ja) 2009-12-03
CN101586487A (zh) 2009-11-25
EP2123870B1 (fr) 2013-12-25
US20090288649A1 (en) 2009-11-26
US8127740B2 (en) 2012-03-06

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